Are you sure? There was a second update after the first update on Monday, the first one had issues with weapons stuff missing, which your error message fits to.
Absolutely. I subscribed on CUP Weapons on steam workshop, so it must be up to date version. I even unsubcribed and subscribed again to redownload mod
Upd.: I found out what's wrong. It's on server side. Server version of CUP Weapons is still 1.12.0
Community Upgrade Project - CUP
in ARMA 3 - ADDONS & MODS: COMPLETE
Posted · Edited by KavkazSila05
upd
Absolutely. I subscribed on CUP Weapons on steam workshop, so it must be up to date version. I even unsubcribed and subscribed again to redownload mod
Upd.: I found out what's wrong. It's on server side. Server version of CUP Weapons is still 1.12.0